Pneumatic tire.



E. J. HICKS.

PNEUMATIC TIRE.

APPLICATION FILED JAN. 7. 1908.

Patented Feb. 2, 1909.

UNITED. STATES PATENT OFFICE.

EDGAR .I. HICKS, OF INDIANAPOLIS, INDIANA.

PNEUMKTI TIRE.

' s No. 911,041.

Specification of Letters Patent.

Patented Feb. 2, 1909.

- of the above class with a certain arrangement whereby in case the inner tube meets with an accident the entire wheel will not be incapacitated.

I accomplish the object of m invention by means of a pneumatic tire illustrated in the accompanying drawings, forming a part hereof, in which.

Figure 1 is a central sectional view of a complete pneumatic tire, showing my invention in operating position. Fig. 2 is a crosssection through one of the compartments of the tire, on an enlarged scale, showing the same closed and ready for service. Fig. 3 is a cross section of the tire, showing the inner peripheral walls, that contain the clenchers, spread apart as when inserting or removing t e inner tube.

In the. drawings, 1 designates the outer,

casing of a detachablepneumatic tire, and 2 the c enchers.

3 is a flap which is secured at one of its edges to the, inner surface of the casing, while the free ed e thereof is lapped over the meeting ed es 0% the outer caslng so as to protect the inner tube from the meeting edges of the outer casing 1.

5 are the several sections comprising the inner tube.

The descri tion so far relates to an old and well known etachable pneumatic tire.

. The present invent-ion consists in providing the outer casing 1 with a plurality of integrally formed and equally spaceddivision' walls 10, by which the interior of the casing 1 is divided into a plurality of compartments. 1

The division wa s 10 to their axes are formed integrally with the inner wall of the casing, while the remaining portions of said walls are severed from the casm wall in order that the'sides of the casinga jacent to the clenchers 2 may be spread apart to permit the inner tubes to be inserted or removed, in the same manner in which the present single tube-is inserted. See Fig. 3. Thedivision walls 10are formed thick enough to insure can proceed to the suificient rigidity to hold the inner tubes in their respective positions, but still retain suf- -ficient resiliency to prevent vibration when the tread of the casing where they are formed.

contacts with the round.

Each-of theso ca ed compartments formed within the outer casing'l by the division walls 10 is provided with an inner tube 5 which is closed at the ends and which snugly fits the said compartments. are placed in their respective compartment when the outer casing 1 is open, as shown in Fig. 3, .in the samemanner as the present inner tube. The flap 3 is then snugly placed in position and the oose walls of the casing 1 are brought together, as shown in Fig. 2, when the casing is ready to be inserted into the tire-plate, not shown. Each of the inner tubes 5 is rovided with a valve by which they are in ated. I

. By the use of a pneumatic tire herein shown, it will be readily seen that expense in adding the division walls 10 will be small when compared with the benefits derived.

.In the first instance, the original expense in The tubes 5 purchasing the tubes will be but slightly in excess of the price of the present single continuous tube, and second, in case of a puncture or a blow-out in one of thersmall tubes 5 the ex ense of replacing the same will be materia y less. Another important feature with the use'of m tire resides in the fact that in' case one i the inner tubes 5 should meet with an accident from any cause and the owner is anxious to reach his destination, or he has no desire to stop on the roadway to make the'nece ssary repairs, he oint of destination where 'the repairs can e more expeditiously made, without endangerin ;the remaining portion of the injured whee or the mechanlsm of the machine.

Having thus fully describedm said invention, what I desire to secure by etters Patent, 1s-

1. A pneumatic tire comprising an outer casing, a plurality of transversely'extending division walls formed integrally for aportion of their circumferences with the internal wall of said casing, the remaining portions of said division walls being free from the casing wall, to permit the free portions of said division walls and the casing to be separated. y y

2. A pneumatic tire comprising an outer casing, a plurality of transversely extending to 1gerrnit the free portions of said division we division Walls formed integrally fora, portion In Witness whereof, I have hereunto set 10 of their circumferences with the internal well my hand and seal at Indianapolis, Indians,

of said casing, the remaining portions of said this 28th day of December, A. D. one thendivision Walls being free from the casing wall, send nine hundred and seven.

EDGAR J. HICKS. [L 5.]

s and the casing to be separated, said division Walls being formed. on a taper, and a plurality of inner tubes adapted to be inserted between said division Walls.

Witnesses F. W. Wonnnnn, L. B. Wonnnnn. 

